diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 70000b33ad3..7028973747b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -555,6 +555,11 @@ jobs:
           path: tmp/simplecov
           merge-multiple: true
 
+      - name: debug
+        run: |
+          ls -la tmp/simplecov
+          ls -la tmp/simplecov/**/.resultset.json
+
       - name: collate results from each of the workers
         run: bundle exec rake 'simplecov:collate_results[tmp/simplecov]'